Peugeot 307 1.4Hdi engine code 8HZ

There is no voltage to AC compressor, I suspect faulty BSM near battery as all the fuses are ok.

But, in case no input goes to BSM then it's logical the AC compressor doesn't turn on.

I bought a used BSM, let's see what happen.

I have no idea what input tell the BSM to activate AC compressor.

All is ok in the cabin.
Also I tried to feed compressor while running the engine and it turns on.